Marking pen



FIG. 1 is a perspective view of the top, front and left side of a marking pen showing my new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front elevational view of the body of the marking pen, shown without the cap for convenience of illustration, the rear elevational view being a mirror image thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a left side elevational view thereof;

FIG. 11 is a right side elevational view thereof;

FIG. 12 is a front elevational view of the cap of the marking pen, shown without the body for convenience of illustration, the rear elevational view being a mirror image thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof;

FIG. 15 is a left side elevational view thereof; and,

FIG. 16 is a right side elevational view thereof. 

The ornamental design for a marking pen, as shown and described. 